Modern Rummy is essentially a melding game in which players use the cards they are dealt to try to form runs and sets. Three or more consecutive cards of the same suit make up a run, whereas three or four csattta-king.comards of the same rank but different suits make up a set. Usually played with two to six players, the game can be played with either a standard deck of cards or special Rummy decks that come with jokers. For any player hoping to succeed in rummy, it is essential to comprehend these fundamental elements. The goal is to "go out" and win the round by being the first to lay down every card in a valid combination.